Natural Cycles Fertility App

6+ million women

Get a non-hormonal and certified contraceptive app today, and discover the difference.

A new category of birth control | NC° Birth Control

Gain clarity and take control of your fertility with Natural Cycles, the #1 birth control app. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

Natural Cycles | Take control of your fertility

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles° algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Seamlessly measure overnight with Oura Ring or a compatible wearable and wake up to personalized fertility insights in the Natural Cycles° app. Join the millions who are taking control of their fertility with NC° Birth Control.

FREE wearable ($129 value) with the NC° Annual Plan

Gain clarity and take control of your fertility with Natural Cycles, the #1 birth control app — now with more ways to measure overnight. New users get a FREE ($129.99 value) NC° Band with the NC° Annual Plan! Go hormone-free today!

Apple Watch, meet Natural Cycles. The FDA-cleared birth control app now uses your Apple Watch temperature to help you prevent or plan pregnancy.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — Natural Cycles goes beyond period tracking, using your temperature data to detect ovulation, not estimate it. So you wake up knowing exactly where you are in your cycle, every day.

6+ million women

Start your subscription today, and discover why over 6 million women already use Natural Cycles.

Apple Watch, meet Natural Cycles. The FDA-cleared birth control app now uses your Apple Watch temperature to help you prevent or plan pregnancy.

Understand your body better with NC°

The birth control app your friends won’t stop talking about. Natural Cycles is the first and only FDA-cleared birth control app that uses your body temperature to help you prevent and plan for pregnancy with confidence. Start a new cycle, on your terms. Make the switch to the #1 birth control and fertility app today.

Built around you

We’ve helped more than 6 million women plan or prevent pregnancy worldwide. Start your journey now!

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — Natural Cycles goes beyond period tracking, using your temperature data to detect ovulation, not estimate it. So you wake up knowing exactly where you are in your cycle, every day.

We are glad we learned about Pythagorean theorem and not this in school 🙃 thankful to @naturalcycles + @nataliecrawfordmd for helping us 🥰

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with NC° Birth Control.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with Natural Cycles° Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

#1 birth control app

Gain clarity, take control

Meet the NC° Band - a wearable designed for women's health. Understand your body better with Natural Cycles° — now with more ways to measure overnight. New users get a FREE ($129.99 value) NC° Band with the NC° Annual Plan!

A new category of birth control | NC° Birth Control

Gain clarity and take control of your fertility with Natural Cycles, the #1 birth control app. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with Natural Cycles°. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.